If by hub rings, you mean a circular shim to match the hub pilot snout to the wheel's hub bore, most of them are plastic and can melt enough due to heat to allow the wheel to shift when being remounted causing vibration problems. This was an issue for a friend with a C63 and Forgestar F14's that required a shim to match the pilot dimensions.

If by hub rings, you mean a circular shim to match the hub pilot snout to the wheel's hub bore, most of them are plastic and can melt enough due to heat to allow the wheel to shift when being remounted causing vibration problems. This was an issue for a friend with a C63 and Forgestar F14's that required a shim to match the pilot dimensions.

Im thinking using replica wheels that need the hub ring because they also fit the x5 and the x5 has 74.1 hub bore, my x6 has 72.56 hub bore for front and 74.1 hub bore for the rear and i need to use the rings for the front.
Maeby this is not such good idea?
If the rings are steel will i be ok?

Im thinking using replica wheels that need the hub ring because they also fit the x5 and the x5 has 74.1 hub bore, my x6 has 72.56 hub bore for front and 74.1 hub bore for the rear and i need to use the rings for the front.
Maeby this is not such good idea?
If the rings are steel will i be ok?

Hubcentric rings are fine - you'd only melt plastic ones if you track, likely. If you can find metal ones, that would be preferred, of course.

Im thinking using replica wheels that need the hub ring because they also fit the x5 and the x5 has 74.1 hub bore, my x6 has 72.56 hub bore for front and 74.1 hub bore for the rear and i need to use the rings for the front.
Maeby this is not such good idea?
If the rings are steel will i be ok?

Hubcentric rings are fine - you'd only melt plastic ones if you track, likely. If you can find metal ones, that would be preferred, of course.

He's talking about wheel spacers used to increase track (push the wheels outboard) which is not the question you asked.

Quote:

Originally Posted by GregW / Oregon

Hubcentric rings are fine - you'd only melt plastic ones if you track, likely. If you can find metal ones, that would be preferred, of course.

I'll admit that my friend is an animal. The car is heavily modified (tune, intake, aftermarket headers, and catless exhaust, plus other stuff I don't know about). He's tracked it a few times. It's likely that an X6 in normal street use would be fine. If you can only get the plastic pilot adaptors, just buy a second set in case you have problems over time. They are very low cost. It's best just to get wheels with the correct pilot hole if you can. M3's seem to be very sensitive to the accuracy of the hub/wheel assembly. I don't know about the X6.

the replica wheels seller stated that the material of the hub rings are polycarbonate.

i really like to stick to OEM, but im having several problems having a dealer ship overseas, i have had no luck that's why im looking for other alternatives, and the replica sellers seems the only one...

i just returned a 2012 m3 because of the differencial turn noise, and i really don't want to have problems with the new x6, thats why im so worried about install this wheels due to vibration or other problems...

Quote:

Originally Posted by calintexas

He's talking about wheel spacers used to increase track (push the wheels outboard) which is not the question you asked.

I'll admit that my friend is an animal. The car is heavily modified (tune, intake, aftermarket headers, and catless exhaust, plus other stuff I don't know about). He's tracked it a few times. It's likely that an X6 in normal street use would be fine. If you can only get the plastic pilot adaptors, just buy a second set in case you have problems over time. They are very low cost. It's best just to get wheels with the correct pilot hole if you can. M3's seem to be very sensitive to the accuracy of the hub/wheel assembly. I don't know about the X6.

I have used plastic centering rings and it is fine, mine didn't melt (no tracking). The rings are only there to center the wheel before tightening to prevent vibration. After that the load is carried by the clamping force of the wheel to the hub. They won't effect your bearings.

Thank you very much for your reply.
I have the following answer from the seller:

**************
The reason the wheels in this auction need the hub ring is because they also fit the x5 and the x5 has 74.1 hub bore. Your x6 has 72.56 hub bore for front and 74.1 hub bore for the rear and you will need to use the rings for the front. If you are ready to purchase let me know.

**************

you telling rears hes telling fronts?? im little confused, if it was for rears i wouldn't be that much worried, but he is telling that they are needed for the front, thatīs makes me worried little more because of the direction/vibration

Quote:

Originally Posted by Poleposition

If these wheels are for an X5 and youre using them for an X6, you only need the hub rings for the rears. The front bores are identical.

If by hub rings, you mean a circular shim to match the hub pilot snout to the wheel's hub bore, most of them are plastic and can melt enough due to heat to allow the wheel to shift when being remounted causing vibration problems. This was an issue for a friend with a C63 and Forgestar F14's that required a shim to match the pilot dimensions.

The goodnews here is that the Forgestars are hubcentric now for BMWs. Why did he get the plastic ring? I always have gotten the aluminum ones.

The goodnews here is that the Forgestars are hubcentric now for BMWs. Why did he get the plastic ring? I always have gotten the aluminum ones.

Dave

I think he was stuck with what was available locally. I'm pretty sure that he didn't realize that the pilot bore didn't match at first and was having vibration issues. His installer apparently figured it out. He ended up getting Modulare's from Wheel Experts. His car is in the gallery section of their site.